More from WebMD

May 2, 2007 -- U.S. medical care costs for urologic diseases neared $11 billion in 2000, with urinary tract infections leading the list of costliest conditions.

Those figures appear in a new report funded by the National Institutes of Health (NIH).

The report comes from researchers including Mark Litwin, MD, MPH, professor of urology and health services at the David Geffen School of Medicine and School of Public Health at the University of California, Los Angeles.

Litwin's team gathered data on the cost of outpatient visits, emergency room visits, and hospitalizations for urologic diseases in 2000. Compiling the 716-page report took five years, states an NIH news release. Here are America's seven most costly urologic diseases, along with their 2000 national medical care tab, according to the report: